package cn.kgc.controller;


import cn.kgc.common.R;
import cn.kgc.dto.DishDto;
import cn.kgc.entity.Category;
import cn.kgc.entity.Dish;
import cn.kgc.entity.Employee;
import cn.kgc.service.CategoryService;
import cn.kgc.service.DishFlavorService;
import cn.kgc.service.DishService;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.stream.Collectors;

/**
 * 菜品管理
 */
@RestController
@RequestMapping("/dish")
public class DishController {

    @Autowired
    DishService dishService;
    @Autowired
    DishFlavorService dishFlavorService;
    @Autowired
    private CategoryService categoryService;


    @PostMapping
    public R<String> save(@RequestBody DishDto dishDto) {
        dishService.saveWithFlavor(dishDto);
        return R.success("新增成功");
    }

    /**
     * 菜品信息分页查询
     */
    @GetMapping("/page")
    public R<Page> page(int page, int pageSize, String name) {

        //构造分页构造器对象
        Page<Dish> pageInfo = new Page<>(page, pageSize);
        Page<DishDto> dishDtoPage = new Page<>();

        //条件构造器
        LambdaQueryWrapper<Dish> queryWrapper = new LambdaQueryWrapper<>();
        //添加过滤条件
        queryWrapper.like(name != null, Dish::getName, name);
        //添加排序条件
        queryWrapper.orderByDesc(Dish::getUpdateTime);

        //执行分页查询
        dishService.page(pageInfo, queryWrapper);
        //对象拷贝
        BeanUtils.copyProperties(pageInfo, dishDtoPage, "records");

        List<Dish> records = pageInfo.getRecords();

        List<DishDto> list = records.stream().map((item) -> {
            DishDto dishDto = new DishDto();

            BeanUtils.copyProperties(item, dishDto);

            Long categoryId = item.getCategoryId();//分类id
            //根据id查询分类对象
            Category category = categoryService.getById(categoryId);

            if (category != null) {
                String categoryName = category.getName();
                dishDto.setCategoryName(categoryName);
            }
            return dishDto;
        }).collect(Collectors.toList());

        dishDtoPage.setRecords(list);

        return R.success(dishDtoPage);
    }


    /**
     * 根据ID 查询菜品信息 和对应的口味信息
     * 请求在url 地址中需要加PathVariable
     */
    @GetMapping("/{id}")
    public R<DishDto> get(@PathVariable long id) {

        DishDto byWithFlavor = dishService.getByWithFlavor(id);
        return R.success(byWithFlavor);
    }

    /**
     * 修改菜品
     */
    @PutMapping
    public R<String> update(@RequestBody DishDto dishDto) {

        dishService.updateWithFlavor(dishDto);
        return R.success("修改成功");
    }

    /**
     * 根据条件查询对应的菜品数据
     *
     * @param dish
     * @return
     */
    @GetMapping("/list")
    public R<List<Dish>> list(Dish dish) {
        //构造查询条件
        LambdaQueryWrapper<Dish> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(dish.getCategoryId() != null, Dish::getCategoryId, dish.getCategoryId());
        //添加条件 查询状态为 1 （起售状态的菜品）
        queryWrapper.eq(Dish::getStatus, 1);
        //添加排序条件
        queryWrapper.orderByDesc(Dish::getSort).orderByDesc(Dish::getUpdateTime);

        List<Dish> list = dishService.list(queryWrapper);
        return R.success(list);

    }

}
